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    <title>MongoDB Jira</title>
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    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-45274] priorPrimaryMemberId electionCandidateMetric should track most recent non-empty primary seen</title>
                <link>https://jira.mongodb.org/browse/SERVER-45274</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;It assumes that on a stepdown with election handoff the new primary will run for election before hearing that the old primary stepped down. This is racy and prone to failure.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1063349">SERVER-45274</key>
            <summary>priorPrimaryMemberId electionCandidateMetric should track most recent non-empty primary seen</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="judah.schvimer@mongodb.com">Judah Schvimer</reporter>
                        <labels>
                            <label>former-quick-wins</label>
                    </labels>
                <created>Fri, 20 Dec 2019 18:27:21 +0000</created>
                <updated>Tue, 6 Dec 2022 02:39:16 +0000</updated>
                                                                            <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2715334" author="judah.schvimer" created="Thu, 9 Jan 2020 21:35:59 +0000"  >&lt;p&gt;Yes.&lt;/p&gt;</comment>
                            <comment id="2714970" author="evin.roesle" created="Thu, 9 Jan 2020 19:19:40 +0000"  >&lt;p&gt;It would be ideal for us to know the prior primary ID even in the case that there are no current primaries visible. I want to be able to determine how often network partitions happen, looking at the prior primary ID and checking on the health of that node, whether it crashed, was down, or just wasn&apos;t visible to the node running. Does this ticket mean we can&apos;t get that information today?&lt;/p&gt;</comment>
                            <comment id="2658682" author="xgen-internal-githook" created="Fri, 20 Dec 2019 20:50:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Judah Schvimer&apos;, &apos;email&apos;: &apos;judah.schvimer@10gen.com&apos;, &apos;username&apos;: &apos;judahschvimer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45274&quot; title=&quot;priorPrimaryMemberId electionCandidateMetric should track most recent non-empty primary seen&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45274&quot;&gt;SERVER-45274&lt;/a&gt; improve logging in election_candidate_and_participant_metrics.js&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c4d21d70c7ae90d1ef8635ff81cfc58d8926c770&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c4d21d70c7ae90d1ef8635ff81cfc58d8926c770&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2658351" author="judah.schvimer" created="Fri, 20 Dec 2019 18:55:56 +0000"  >&lt;p&gt;Note for schedulers: waiting on Aly&apos;s response to the above to determine if the cpp behavior is fine and we can just adjust the test or if we need to change the cpp behavior to reflect what the test expects.&lt;/p&gt;</comment>
                            <comment id="2658334" author="judah.schvimer" created="Fri, 20 Dec 2019 18:49:12 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=alyson.cabral&quot; class=&quot;user-hover&quot; rel=&quot;alyson.cabral&quot;&gt;alyson.cabral&lt;/a&gt;, this test failed because the &quot;priorPrimaryMemberId&quot; field in &lt;tt&gt;replSetGetStatus&lt;/tt&gt; &quot;electionCandidateMetrics&quot; represents the primary at the time the election was called, NOT the last primary the node was aware of. If there is any period of 0 primaries between the previous election and the new election, then the &quot;priorPrimaryMemberId&quot; field will be missing. Is this behavior acceptable, desired, or undesired?&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="1084302">SERVER-45493</issuekey>
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